Solve the Multiplication Equation: (-2) × ? = -4

Let's remember the law:

$(-x)\times(+x)=-x$

Let's think about which number we need to multiply by 2 to get 4:

$2\times2=4$

Now let's put the numbers together with the appropriate sign as written in the law above, and we'll get:

$-2\times(+2)=-4$